Squeak-dev September 2004

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437 discussions

Making sense of VM test coverage.
by Alan Grimes 30 Sep '04

30 Sep '04

I have been taking a class in software engineering, One of the only useful lessons to come out of the course is about test coverage. So I compiled my VM with full test coverage (dude). =P I fired up this VM and ran the full SM tests with the benchmarks. When I looked at the output, I found that most source lines had been executed so many times the counters rolled over! Other lines had been executed hundreds of thousands of times (or just hundreds). Throughout the log there were many examples of lines which had not been executed at all. Many of these were saftey checks on opcodes. I know that the Squeak philosophy is to make everything safe. However it seems that they way that the image, compiler, and base clases are laid out effectively makes this redundant. As CPU pipes get deeper, this could be an issue worth considering... Are there any coverage test suites for the VM? What's going on here is that I've started hacking on the VM again and the current version has gone wierd on me... Since I'm compiling with - O0, I might have uncovered another GCC issue too. With my marginally trustworthy workhorse VM, I get 20 failures and 6 erorrs. I hack on it and you'd expect more failures and errors. Well, my latest run gave me 18 failures and 6 errors. However there seemed to be more debug windows and the workspace the benchmarks tried to dump to was in red-box mode. =( Apparently I still have a mostly working VM except for one or two relatively subtle issues that I want to at least understand before I continue.

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about harvesting
by danil a. osipchuk 30 Sep '04

30 Sep '04

Hi list I left my previous job and now sitting at home preparing for "search the next job" quest. So i can spend several hours per day for some work with BFAV (aka "simple things we all can do"). I've read related topics on swiki (sure not all of them) - and now have some questions. 1) Is it real to use BFAV with dialup connection? (Ideally I would like to work in "batch" mode - not holding the line all the time) Are there any caveats in using BFAV _right now_ or things are pretty straightforward(I mean some specific preparations of image or something like this)? 2) What are topics community most interesting in (it seems that if one will begin to strive for benefit of squeak on his one - he'll produce amount of useless work depending on his enthusiasm)? 3) If BFAV is the place where action happens now or all is being moved to mantis? In general I would like to hear simple instructions from somebody knowledgeable in order to start Danil

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[ENH] Resize with aspect-st
by sam＠rfc1149.net 30 Sep '04

30 Sep '04

"Change Set: Resize with aspect-st Date: 14 September 2004 Author: Samuel Tardieu Make shift on the grow (resize) handle preserve the aspect ratio. Shift can be pressed at any time while moving the mouse. Also, add comments about shift actions in halos in balloon help messages (Debug, Change color and Resize handles)."

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[ENH] Add player's textual reference into workspace
by Takashi Yamamiya 30 Sep '04

30 Sep '04

Hi, This is a small cs but I think it's useful. Takashi ---- Add player's textual reference into workspace as substitute for the morph's reference. Because you can use same expression as etoy script editor, it is useful when we introduce Smalltalk language from etoy. 1: Open Workspace. 2: Click window menu and check 'create textual references to dropped morphs'. 3: Drag any morph into the workspace. 4: You can get textual reference of the *player*. To disable this feature, disable #addPlayerTextualRefInWorkspace at script in Preferences.

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[FIX] UrlFixes
by John Pfersich 30 Sep '04

30 Sep '04

A belated set of fixes to Url and child classes to fix url parsing. Has the side effect of making tests that formerly failed work again. -- ---------------------------------------------------- Source code in files. How quaint. -- Kent Beck

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[BUG] [SarBuilder] [3.7-5988] - MessageNotUnderstood: PackageInfo >>fileOutOnStream:
by Magistrello Alejandro (SFA) 30 Sep '04

30 Sep '04

tryng to produce a Sar file doing SARPackageDumper fileOutPackageNamed: 'SARBuilder' as: 'SARBuilder.2.sar' i get the attached error regards Alejandro <<SqueakDebug.log>>

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[FIX] [IRC]IRC_assureLogDirExistence
by danil-home＠tsnet.ru 30 Sep '04

30 Sep '04

Launching IRC in fresh squeak dir gives walkback - because there is no irc-log directory structure yet. This tiny fix forces IRCErrorLog class>> logStreamNamed: existsIn: to create log directory if it doesn't exist.

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[BUG][FIX][Chronology] Dates are never invalid
by Ben Schroeder 30 Sep '04

30 Sep '04

Here is a fix to DateAndTime's error handling, based on what Date did in 3.6. From the preamble: As reported by Avi Bryant, version 3.6 would give an error when a date like Date year: 2004 month: 2 day: 30 Date year: 2004 month: 2 day: 0 was created, as the 30th and 0th are 'out-of-bounds' for February of that year. It looks like a check, formerly in Date>>newDay:month:year:, was missing after the transition to Chronology classes. This changeset restores the check. Regards, Ben Schroeder

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[ENH] PointerExplorer
by denker＠iam.unibe.ch 30 Sep '04

30 Sep '04

from preamble: "Change Set: PointerExplorer Date: 29 September 2004 Author: avi md: repackaged as a changeset. A variant on the ObjectExlorer that works 'backwards': like the ObjectExplorer, it shows a tree of objects, but expanding a node won't show the objects which that node references, but rather the objects that reference that node. Its main use is to track down memory leaks: if you want to know why a particular object is still alive, open a PointerExplorer on it and drill down until you find the root object that's referencing it. For example, find all the references to the symbol #zot with: PointerExplorer new openExplorerFor: #zot For the 'name' of the object, the PointerExplorer shows each object's identityHash, to allow the user to identify when two similar objects are identical and notice cycles."!

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[BUG] [PackageInfo-Exporters] v7 on SM seems to be broken (corrupted file)
by danil-home＠tsnet.ru 30 Sep '04

30 Sep '04

The error report: 30 September 2004 7:00:36 pm VM: unix - a SmalltalkImage Image: Squeak3.7 [latest update: #5989] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /usr/home/danil/Squeak Trusted Dir /usr/home/danil/Squeak/secure Untrusted Dir /usr/home/danil/Squeak/untrusted ZipArchive(Object)>>error: Receiver: a ZipArchive Arguments and temporary variables: aString: 'can''t find EOCD position' Receiver's instance variables: members: an OrderedCollection() centralDirectorySize: nil centralDirectoryOffsetWRTStartingDiskNumber: nil zipFileComment: '' writeCentralDirectoryOffset: 0 writeEOCDOffset: 0 ZipArchive>>readFrom: Receiver: a ZipArchive Arguments and temporary variables: aStreamOrFileName: StandardFileStream: '/usr/home/danil/Squeak/sm/cache/package...etc... stream: StandardFileStream: '/usr/home/danil/Squeak/sm/cache/packages/2y2gkftl0...etc... name: '/usr/home/danil/Squeak/sm/cache/packages/2y2gkftl0nefj08591czgt2ph/4/Pa c...etc... eocdPosition: 0 Receiver's instance variables: members: an OrderedCollection() centralDirectorySize: nil centralDirectoryOffsetWRTStartingDiskNumber: nil zipFileComment: '' writeCentralDirectoryOffset: 0 writeEOCDOffset: 0 MCMczReader>>zip Receiver: a MCMczReader Arguments and temporary variables: Receiver's instance variables: stream: StandardFileStream: '/usr/home/danil/Squeak/sm/cache/packages/2y2gkftl0...etc... package: nil info: nil definitions: nil dependencies: nil zip: a ZipArchive infoCache: nil MCMczReader>>parseMember: Receiver: a MCMczReader Arguments and temporary variables: fileName: 'package' tokens: nil Receiver's instance variables: stream: StandardFileStream: '/usr/home/danil/Squeak/sm/cache/packages/2y2gkftl0...etc... package: nil info: nil definitions: nil dependencies: nil zip: a ZipArchive infoCache: nil --- The full stack --- ZipArchive(Object)>>error: ZipArchive>>readFrom: MCMczReader>>zip MCMczReader>>parseMember: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MCMczReader>>loadPackage MCMczReader(MCVersionReader)>>package MCMczReader(MCVersionReader)>>basicVersion MCMczReader(MCVersionReader)>>version MCMczReader class(MCVersionReader class)>>versionFromStream: [] in MCMczReader class(MCVersionReader class)>>versionFromFile: {[:stream | self versionFromStream: stream]} [] in MCMczReader class(MCVersionReader class)>>file:streamDo: {[file := FileStream readOnlyFileNamed: fileName. aBlock value: file]} BlockContext>>ensure: MCMczReader class(MCVersionReader class)>>file:streamDo: MCMczReader class(MCVersionReader class)>>versionFromFile: MCMczReader class(MCVersionReader class)>>loadVersionFile: SMMcInstaller>>installMcz SMMcInstaller>>fileIn SMMcInstaller>>install [] in SMLoader>>installPackageRelease: {[(SMInstaller forPackageRelease: aRelease) install. myRelease = self instal...]} BlockContext>>ensure: CursorWithMask(Cursor)>>showWhile: [] in SMLoader>>installPackageRelease: {[Cursor wait showWhile: [(SMInstaller forPackageRelease: aRelease) install...]} BlockContext>>on:do: SMLoader>>installPackageRelease: SMLoader>>installPackageRelease SMLoader>>perform:orSendTo: [] in MenuItemMorph>>invokeWithEvent: {[(selArgCount := selector numArgs) = 0 ifTrue: [target perform: selector] ...]} BlockContext>>ensure: CursorWithMask(Cursor)>>showWhile: MenuItemMorph>>invokeWithEvent: MenuItemMorph>>mouseUp: MenuItemMorph>>handleMouseUp: MouseButtonEvent>>sentTo: MenuItemMorph(Morph)>>handleEvent: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: MenuItemMorph(Morph)>>processEvent:using: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: MenuMorph(Morph)>>processEvent:using: MenuMorph(Morph)>>processEvent: MenuMorph>>handleFocusEvent: [] in HandMorph>>sendFocusEvent:to:clear: {[ActiveHand := self. ActiveEvent := anEvent. result := focusHolder han...]} [] in PasteUpMorph>>becomeActiveDuring: {[aBlock value]} BlockContext>>on:do: PasteUpMorph>>becomeActiveDuring: HandMorph>>sendFocusEvent:to:clear: HandMorph>>sendEvent:focus:clear: HandMorph>>sendMouseEvent: HandMorph>>handleEvent: HandMorph>>processEvents [] in WorldState>>doOneCycleNowFor: {[:h | ActiveHand := h. h processEvents. capturingGesture := capturingGest...]} ...etc...

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